ARM64Exception.h

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/*
 * Copyright (C) 2025 Ivan Tan
 * Copyright (C) 2015 Niek Linnenbank
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
#ifndef __LIBARCH_ARM64_EXCEPTION_H
#define __LIBARCH_ARM64_EXCEPTION_H
 
#include <Types.h>
#include <IntController.h>
 
struct CPUState;
 
#define ARM64_EX_VECTAB_SIZE   (64)
 
class ARM64Exception
{
  public:
 
    enum ExceptionType
    {
        Sync_SP_EL0 = 0,
        IRQ_SP_EL0,
        FIQ_SP_EL0,
        SError_SP_EL0,
        Sync_SP_ELx,
        IRQ_SP_ELx,
        FIQ_SP_ELx,
        SError_SP_ELx,
        Sync_Lower_EL,
        IRQ_Lower_EL,
        FIQ_Lower_EL,
        SError_Lower_EL,
        Sync_Lower_EL_AA32,
        IRQ_Lower_EL_AA32,
        FIQ_Lower_EL_AA32,
        SError_Lower_EL_AA32,
    };
 
    enum Result
    {
        Success,
        NotFound,
        IOError
    };
 
    typedef void Handler(struct CPUState state);
 
  public:
 
    ARM64Exception();
 
    Result install(ExceptionType vector, Handler handler);
 
  private:
 
    Address m_vecTable;
};
 
#endif /* __LIBARCH_ARM64_EXCEPTION_H */